I recently obtained from a local supplier BES 4.0 (5 user) for trial. Supplier gave me BES 4.0 SBE. Installed, worked great. We agreed to purchase and proceeded with the order for 20 users. Supplier gave us 3 additional user packs. I added two successfully but the third generated a message advising that the version installed does not support more than 15 users. Went back to supplier and they provided - a twenty user license, 1 box containing BES 3.6 and another box containing BES 3.6 to 4.0 upgrade.

Am I missing something here? Do I have to uninstall my BES 4.0 SBE, install BES 3.6 and then upgrade to 4.0? What happens to the 12 users I have successfully deployed the BB's to during this period?